Identify the vertex, axis of symmetry, and whether the parabola opens upward or downward.
A. (1, 0); x = 0; Downward
B. (0, 1); x = 0; Upward
C. (0, 1); x = 0; Downward
D. (1, 0); x = 1; Upward
Answer: C
Mathematics
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Compute dy/dx for the function.y = ln sinh 5x
A. 5 csch 5x
B. 
C. 5 coth 5x
D. coth 5x
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The following stem-and-leaf plot gives the heights of the 20 highest mountains in two continents. Use the plots to answer the question. 
Find the mean of the heights of the 20 highest mountains in Continent X.
A. 14,420 feet B. 14,650 feet C. 15,002 feet D. 14,800 feet
Mathematics
Find the standard form of the equation of the ellipse with the given characteristics. vertices: (4, –6), (4, 10) minor axis of length: 4
a. 
b. 
c. 
d. 
e. 
Mathematics
Find the common ratio for the geometric sequence.6, -1.8, 0.54, -0.162, . . .
A. -0.3 B. -3 C. -1.8 D. -0.03
Mathematics